From d6f9dbc493df725d3d574403549de142c5e1222a Mon Sep 17 00:00:00 2001
From: Kenneth Russel <kbrussel@alum.mit.edu>
Date: Mon, 24 Oct 2005 19:21:03 +0000
Subject: Merged JSR-231 branch on to the main JOGL trunk. The main trunk now
 contains the evolving JSR-231 Reference Implementation and the JSR-231 branch
 is permanently closed.

git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/svn-server-sync/jogl/trunk@401 232f8b59-042b-4e1e-8c03-345bb8c30851
---
 .../impl/macosx/MacOSXOnscreenGLContext.java       | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java

(limited to 'src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java')

diff --git a/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java b/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java
new file mode 100644
index 000000000..9e20dd6dd
--- /dev/null
+++ b/src/classes/com/sun/opengl/impl/macosx/MacOSXOnscreenGLContext.java
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2003 Sun Microsystems, Inc. All Rights Reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * 
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * 
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * This software is provided "AS IS," without a warranty of any kind. ALL
+ * EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
+ * INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
+ * PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN
+ * MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL NOT BE LIABLE FOR
+ * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+ * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR
+ * ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR
+ * DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE
+ * DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
+ * ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
+ * SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+ * 
+ * You acknowledge that this software is not designed or intended for use
+ * in the design, construction, operation or maintenance of any nuclear
+ * facility.
+ * 
+ * Sun gratefully acknowledges that this software was originally authored
+ * and developed by Kenneth Bradley Russell and Christopher John Kline.
+ */
+
+package com.sun.opengl.impl.macosx;
+
+import java.util.*;
+
+import javax.media.opengl.*;
+import com.sun.opengl.impl.*;
+
+public class MacOSXOnscreenGLContext extends MacOSXGLContext {
+  protected MacOSXOnscreenGLDrawable drawable;
+
+  public MacOSXOnscreenGLContext(MacOSXOnscreenGLDrawable drawable,
+                                 GLContext shareWith) {
+    super(drawable, shareWith);
+    this.drawable = drawable;
+  }
+
+  protected int makeCurrentImpl() throws GLException {
+    try {
+      int lockRes = drawable.lockSurface();
+      if (lockRes == MacOSXOnscreenGLDrawable.LOCK_SURFACE_NOT_READY) {
+        return CONTEXT_NOT_CURRENT;
+      }
+      if (lockRes == MacOSXOnscreenGLDrawable.LOCK_SURFACE_CHANGED) {
+        super.destroy();
+      }
+      int ret = super.makeCurrentImpl();
+      if ((ret == CONTEXT_CURRENT) ||
+          (ret == CONTEXT_CURRENT_NEW)) {
+        // Assume the canvas might have been resized or moved and tell the OpenGL
+        // context to update itself. This used to be done only upon receiving a
+        // reshape event but that doesn't appear to be sufficient. An experiment
+        // was also done to add a HierarchyBoundsListener to the GLCanvas and
+        // do this updating only upon reshape of this component or reshape or movement
+        // of an ancestor, but this also wasn't sufficient and left garbage on the
+        // screen in some situations.
+        CGL.updateContext(nsContext, drawable.getView());
+      } else {
+        // View might not have been ready
+        drawable.unlockSurface();
+      }
+      return ret;
+    } catch (RuntimeException e) {
+      try {
+        drawable.unlockSurface();
+      } catch (Exception e2) {
+        // do nothing if unlockSurface throws
+      }
+      throw(e); 
+    }
+  }
+    
+  protected void releaseImpl() throws GLException {
+    try {
+      super.releaseImpl();
+    } finally {
+      drawable.unlockSurface();
+    }
+  }
+    
+  public void swapBuffers() throws GLException {
+    if (!CGL.flushBuffer(nsContext, drawable.getView())) {
+      throw new GLException("Error swapping buffers");
+    }
+  }
+}
-- 
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